3. Full software, this is the easiest way to record our guitar signal. We just have to record the dry guitar signal straight into DAW and do the process using virtual guitar amp plugin such as Aradaz Amps VST. Schema:

guitar -> preamp -> DAW

As you can see above, we use recording preamp before DAW soundcard. It used to match guitar impendance with soundcard line inputs. You can use DI-Box if you don't have any preamp.